Tank-heater.



lPaie-nieu. Apr. 29, |902.

gl I llllllllllllllllll`lllk// v M. LYNCH. TANK HEATER.

will@i UNITED STATES PATENT FFICE.

MATTHEW LYNCH, OFMALTABEND, MISSOURI.

TAN K-HEATER.

SPECIFICATION formingpart of Letters Patent No. 698,983, dated April 29, 190.2. Application filed september 6,1901.I serai No. 74,559. (No man.)

To col-Z whom it may concern:

Be it known that I, MATTHEW LYNCH, a citizen of the United States, residing at Maltabend, in the county of Saline and State of Missouri, have invented certain new and useful Improvements in Tank-Heaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same.

The present invention relates to improvements in tank-heaters, and more particularly to that form of heater provided with a waterjacket inelosing the combustion-chamber, the

same being of the downdraft type.

One of the objects of the invention vis. the exposure of a maximum of surface to the action of the products of combustion for a rapid heating of a comparativelyT small-quantity of water for creating a circulation thereOf,Where by the hot waterwill be caused to rise and permit cold water to take its place, communication being had with the tank being heated.

It consists of certain other novel constructions, combinations, and arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings,Figure 1 represents a vertical longitudinal section through a tank-heater embodying the features of the present invention, the tank being shown in elevation with part broken away to reveal the structure. Fig. 2 represents a transverse section of the same, taken on line Y 2 2 of Fig. 1.

In the art to which my invention relates it is often found desirable to rapidly heat the contents of a tank, and to accomplish this with a minimum of fuel I provide, as seen in the accompanying drawings, illustrating one embodiment of the present invention, a water-jacket, as 1, which is formed of an inner wall 2 and an outer wall 3, the two walls being spaced apart, forming an intermediate water-space 4. AThe jacket 1 is preferably of arch shape in transverse section, but maybe of any desired shape, the said jacket forming the top, side, and rear Walls to an interior combustion-chamber, as 5, in which is supported a suitable grate, as 6. The walls 2 and Sare each provided all around, except at the front end, with au outwardly-extending iange, as

7, said flanges being secured togetherby any preferred securing means, the jointure between said flanges being such as to prevent the passage of water, the ange of wall 2 closing the'space between the two walls at the base.

The flanges 7 rest upon and may, if desired, be secured/to a suitable base, as 9, the said base being penetrated by a flue, as 10, of any preferred form,the same entering the combustion-chamber 5 near the rear end thereof.

The front end of chamber 5 is closed by a wall, as 11, provided with a door, as 12, for` the supply of fuel, said door havinga suitable draft-regulator, as 13, and in operation the air for supporting combustion is permitted to enter through said regulator, passing downward through grate 6,as indicated by the arrows, and finally out flue 10.

In operation the j aeket and parts described are preferably buried in the earth to the extent shown in the drawings, and a tank, as 14, is mounted above the jacket and rests upon the surrounding earth. The parts of a suitable threaded tu'bular coupling, as 15, are united, thereby establishing communication between tank 14 and water-space 4, whereby the heated Water of jacket l may rise into tank 14 and the cold water thereof may descend into said jacket for becoming heated.

It will be noted that the walls 2 and 3 are each formed of one integral piece of material, including the iianges .7 which are simply struck outwardly therefrom. This feature facilitates the manufacture and reduces the expense of productionof the improved heater. Of course that portion of each of walls 2 and 3 forming the end wall'to chamber 5 may be formed separately from and secured to the front portion of its respective side wall, if desired.

In positioning the jacket 1 the ianges 7 may be passed beneath the surroundingearth, together with base 9, as shown, or said base may alone be held in place in such manner, said anges beingsecured toithe base.

Any desired form of ash-pan may beplaced beneath grate 6, or no pan need be used, if preferred.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

ICO

1. A tank-heatercomprisinga water-jacket forming the top, sides and one end Wall of a combustion-chamber, a front Wall completing the same, a door formed therein, a grate within said chamber, and a flue of approximately the Width of the combustion-chamber leading from the bottom of said chamber for conducting the products of combustion therefrom, substantially as described.

2. In a tank-heater, the combination with a tank, of a Water-jacket beneath the same, means forpermittingcommunicationbetweeu the interior of said jacket and said tank, the said jackets forming the rear, top and side Walls of a combustion-chamber, a front wall and base completing the same, a grate Within said chamber, a door formed in the said front l Intestimony whereof I hereunto aflix my l signature in presence of two Witnesses.

MATTHEV LYNCH. W'itnesses:

W. I'I. HALL, W. J. BROWN. 

